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Official data from INPI

PROCESSO E DISPOSITIVO PARA LIMPE ZA DO INTERIOR DE UM FILTRO DE CALDEIRA E DOS RESPECTIVOS ELEMENTO SEPARADOS DO FILTRO

ConcedidaInvention Patent

Application data

Number

PI7807020

Type

Invention Patent

Filing

11/26/1977

Publication

-

Progress at the INPI

  1. Filing11/26/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant12/27/83
  6. Terminated01/28/92

The patent was granted on 12/27/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/27/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HOLSTEIN & KAPPERT GMBH

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Inventors

S. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

05/11/1982

RPI 603

6.2

12/29/1981

RPI 584

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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